Bluefin vs Comfort Kool heat pumps
Measured against models of the same size and duct type, Bluefin and Comfort Kool split the 6 ratings 3–3. Bluefin has 3 outdoor models, Comfort Kool has 3 outdoor models. Bluefin and Comfort Kool have no QMID on file and are not ranked.
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CompareData as of updated · sources
Against comparable models
Each cell is the share of same-size, same-type models that the manufacturer’s typical model beats (50% is typical); the higher score is in bold. Raw medians are underneath for context: they depend on which sizes each one makes, so they are not compared.
- Bluefin
- Comfort Kool
- Other ranked manufacturers
Source: AHRI Directory, NEEP · as of
| Rating | Bluefin | Comfort Kool |
|---|---|---|
| Efficiency index | 53% (higher)median — | 34% (higher)median — |
| COP at 5°F | 45% (higher)median 1.99 | 36% (higher)median 1.80 |
| Capacity retention at 5°F | 26%median 70% | 27%median 69% |
| HSPF2 | 41%median 9.4 | 45%median 9.5 |
| SEER2 | 73% (higher)median 22.3 | 41% (higher)median 21.0 |
| EER2 | 62% (higher)median 12.2 | 22% (higher)median 10.5 |
| Heating capacity at 5°F | 34%median 19,000 Btu/h | 44%median 12,500 Btu/h |
| Outdoor models | 3 | 3 |
| AHRI certifications | 5 | 3 |
Share of models meeting each standard
| Standard | Bluefin | Comfort Kool |
|---|---|---|
| CEE 2025 Tier 1 (Split ASHP) | 100%3 models | 100%3 models |
| CEE 2026 Tier 1 (Split ASHP) | 100%3 models | 100%3 models |
| CEE Advanced Tier (Split ASHP) | 0%0 models | 0%0 models |
| Xcel Energy Colorado cold-climate ASHP (2025) | 66.7%2 models | 33.3%1 models |
| DOE Cold Climate Heat Pump Challenge | 0%0 models | 0%0 models |
| ENERGY STAR Cold Climate | 66.7%2 models | 0%0 models |
Sizes and duct types offered
Models in each peer group, with the efficiency index of those models against the rest of the group.
- Bluefin
- Comfort Kool
- All models of the group
Raw ratings are only placed side by side within one size and duct type, where they are comparable.
Source: AHRI Directory · as of
| Size and duct type | Bluefin | Comfort Kool |
|---|---|---|
| Ducted, 2 tons | 1 · index 65% | None |
| Non-ducted, up to 1.5 tons | 1 · index 49% | 2 · index 31% |
| Non-ducted, 2 tons | 1 · index 57% | 1 · index 39% |
| Non-ducted, 2.5–3 tons | 1 · index 39% | None |
Cold-climate and all-around picks, size class by size class
Each manufacturer’s best model on each board in every size and duct type, side by side; the higher score is in bold. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there), so the two compare fairly even when they make different sizes.
Cold-climate picks
| Size and duct type | BluefinCold-climate score, best model | Comfort KoolCold-climate score, best model |
|---|---|---|
| Ducted, 2 tons | 48.6(50 is the typical model of its size class)BFMS27MZPL-02O1 of 1 models qualify · AHRI 216719248 | No models in this size class |
| Non-ducted, up to 1.5 tons | 39.4(50 is the typical model of its size class) (higher)BFMS09BA-02Owith ductless indoor unit BFMS09BA-02I1 of 1 models qualify · AHRI 216719246 | 37.6(50 is the typical model of its size class)MCKA12K01Cwith ductless indoor unit MCKA12K01E1 of 2 models qualify · AHRI 217477891 |
| Non-ducted, 2 tons | 41.1(50 is the typical model of its size class)BFMS27MZPL-02O1 of 1 models qualify · AHRI 216719247 | None on this board (0 of 1 models qualify) |
| Non-ducted, 2.5–3 tons | None on this board (0 of 1 models qualify) | No models in this size class |
All-around best
| Size and duct type | BluefinAll-around score, best model | Comfort KoolAll-around score, best model |
|---|---|---|
| Ducted, 2 tons | 64.5(50 is the typical model of its size class)BFMS27MZPL-02O1 of 1 models have all five ratings · AHRI 216719248 | No models in this size class |
| Non-ducted, up to 1.5 tons | 49.2(50 is the typical model of its size class) (higher)BFMS09BA-02Owith ductless indoor unit BFMS09BA-02I1 of 1 models have all five ratings · AHRI 216719246 | 32.2(50 is the typical model of its size class)MCKA12K01Cwith ductless indoor unit MCKA12K01E2 of 2 models have all five ratings · AHRI 217477891 |
| Non-ducted, 2 tons | 56.7(50 is the typical model of its size class) (higher)BFMS27MZPL-02O1 of 1 models have all five ratings · AHRI 216719247 | 39.1(50 is the typical model of its size class)MCKA24K02Cwith ductless indoor unit MCKA24K02E1 of 1 models have all five ratings · AHRI 217477893 |
| Non-ducted, 2.5–3 tons | 39.4(50 is the typical model of its size class)BFMS30BA-02Owith ductless indoor unit BFMS30BA-02I1 of 1 models have all five ratings · AHRI 216719244 | No models in this size class |
Standout model on each rating
Each manufacturer’s model that beats the largest share of comparable models on the rating; the higher share is in bold.
| Rating | Bluefin | Comfort Kool |
|---|---|---|
| COP at 5°F | beats 56% · 1.99BFMS09BA-02ONon-ducted, up to 1.5 tons | beats 71% · 2.10MCKA24K02CNon-ducted, 2 tons |
| Capacity retention at 5°F | beats 34% · 71%BFMS27MZPL-02ODucted, 2 tons | beats 47% · 75%MCKA12K01CNon-ducted, up to 1.5 tons |
| HSPF2 | beats 54% · 9.0BFMS27MZPL-02ODucted, 2 tons | beats 45% · 9.5MCKA12K01CNon-ducted, up to 1.5 tons |
| SEER2 | beats 94% · 21.0BFMS27MZPL-02ODucted, 2 tons | beats 47% · 21.0MCKA24K02CNon-ducted, 2 tons |
| EER2 | beats 62% · 12.6BFMS09BA-02ONon-ducted, up to 1.5 tons | beats 23% · 10.5MCKA12K01CNon-ducted, up to 1.5 tons |
| Heating capacity at 5°F | beats 56% · 19,000 Btu/hBFMS27MZPL-02ONon-ducted, 2 tons | beats 72% · 12,500 Btu/hMCKA18K02CNon-ducted, up to 1.5 tons |